977275 Volvo.Penta Flange screw

1. Drain the coolant from the cooling system.2. Remove the bolts and retainers from both ends of tube (1) and remove tube (1) from the engine. 3. Fasten a hoist to water pump (3). Remove all of bolts (2) and (4) that hold the water pump to engine. Remove water pump (3) from the engine. The weight of the water pump is 39 Kg (85 lb.). The following steps are for the installation of the water pump.4. Make sure the gasket for the water line adapter and the O-ring seal on the pump are in position. Put clean engine oil on the O-ring seal. Fasten a hoist to water pump (3) and put water pump (3) in position on the engine. Make sure the splines on the water pump shaft are correctly engaged, and install the bolts to hold the water pump in position.5. Make sure the O-ring seals on both ends of tube (1) are in position, and put clean engine oil on the seals. Put tube (1) in position, and install the retainers and bolts to hold the tube in position on the engine.6. Fill the cooling system with coolant to the correct level.Disassemble Water Pump
Start By:a. remove water pump 1. Remove elbow (1) from housing assembly (2). Remove the O-ring seal from elbow (1). 2. Remove O-ring seal (5) from the back of housing assembly (2).3. Remove washer (4) that holds shaft assembly (3) in housing assembly (2).
Typical Example4. Remove cover (6) from housing assembly (2). Remove the O-ring seal from cover (6). 5. Loosen nut (8) and the washer that hold impeller (7) to the pump shaft. Use tooling (A) to loosen impeller (7) from the end of the pump shaft. Remove tooling (A), nut (8), the washer and impeller (7) from the pump shaft and housing assembly (2).
Typical Example6. Remove spring (10) from seal assembly (9) and shaft assembly (3).7. Use a soft faced hammer and push shaft assembly (3) out of seal assembly (9) and housing assembly (2). Remove seal assembly (9) from housing assembly (2). 8. Remove ceramic seal (11) from the rubber ring. Remove the rubber ring from housing assembly (2). 9. Remove seal (12) from the back of housing assembly (2).Assemble Water Pump
1. If necessary, make a replacement of the two filters in the pump housing at location (13).2. If necessary, make a replacement of plug (14) and the seal.3. Use tooling (A) to install the seal in the housing assembly. Make sure the lip of the seal is toward the outside as shown. Put clean engine oil on the lip of the seal. 4. Install shaft assembly (3) in housing assembly (2). Install washer (4) and the bolts to hold shaft assembly (3) in position. Install O-ring seal (5) on the back of housing assembly (2).
Clean water only is permitted for use as a lubricant for assembly. Do not damage or put hands on the wear surface of the carbon ring or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal assembly.
Typical Example5. Put ceramic seal (11) in position in the rubber ring. Use hand pressure and the tool (which is with the replacement seal) to install the ceramic seal.
Typical Example6. Remove the spring from seal assembly (9). Use hand pressure and the tool, (which is with the replacement seal), to install the seal assembly. Push the seal assembly on the shaft until the seal faces make light contact.
Typical Example7. Install spring (10) on the carbon seal assembly.8. Put impeller (7) in position on the pump shaft as shown. 9. Install the washer and nut (8). Tighten nut (8) to a torque of 200 25 N m (150 18 lb.ft.). 10. Make sure the studs for cover (6) are tightened in the pump housing.11. Put clean engine oil on O-ring seal (15) and install it on cover (6). Put cover (6) in position and install the nuts to hold it to the pump housing. Tighten the nuts to a torque of 27 4 N m (20 3 lb.ft.). 12. Put clean engine oil on the O-ring seal and install it in elbow (1). Put elbow (1) in position on housing assembly (2) and install the bolts to hold the unit together.13. Put clean engine oil on the O-ring seal and install it on the back of housing assembly (2).End By:a. install water pump